2 responses

  1. Forest BB Clem
    September 26, 2016

    Andrel,

    This is an interesting topic for me but on a different plane.
    My blog for first time campers suggests that GPS systems are good for guidance as long as there is direct line of site with the satellites.

    Too often, when you need them the most is when they won’t work for that reason. Mountains and trees can block the line of site view to your unit and may not serve you well. For that reason I go back to the old hand held compass .

    I am a firm believer that as things become more high tech, not to forget the old school analogue stuff that has worked for centuries.

    Being a retired employee of Space Systems Loral in Palo Alto Ca. I know things are improving by using multiple low orbit satellites. Thus giving more satellites on the job for your use.

    I hope they can create a system that works in a covered situation but I’ll still keep my compass as well.

    Thanks for a well written post. Good information.

    Reply

    • Andrejs
      September 26, 2016

      Hi, and thank you for honest and wise words!

      You are right that GPS or other sat nav systems signals like Russian GLONASS and European Galileo can not be achieved due to various reasons. Even more sat nav signals could be jammed or switched off for security reasons or just to interrupt signals like North Korea recently did in the close border are with South Korea.

      But you will agree that modern technology is no longer imaginable without the presence of GPS.

      Reply

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